Improper validation of certificate with host mismatch in Apache Ranger - CVE-2026-65942
Published: August 24, 2026
Vulnerability identifier: #VU144913
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-65942
CWE-ID: CWE-297
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to intercept or modify transmitted data.
The vulnerability exists due to improper certificate validation in Apache Ranger client code when establishing TLS connections. A remote attacker can present a certificate issued for a different hostname to intercept or modify transmitted data.
Affected software
Apache Ranger
How to mitigate CVE-2026-65942
Install security update from vendor's website.
Apache Ranger - update to 2.9.0